Heating system.



G. E. HULSE.

HEATING SYSTEM.

APPLIUATION FILED rmm, 1909.

499 Patented Aug*.2,1910.

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WITNESSES: INVENTOI? Wgm G. E. HULSE. HEATING SYSTEM.

I ARPLIUATIONTILED PBB.6, 1909. 96@,409m Patented Aug. 2,1910.

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4 scription in which the temperature of a comwater of condensation is drained.

GEORGE EGBERT HULSE, OE NEWARK, NEW JERSEY, AS SIGNOR TO SAFETY CAR HEAT- ING & LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

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.vertical sectional view taken through the aushown as'applicd to a railway car, for which HEATING SYSTEM.

Specification of Letters Patent.

Patented Aug. 2, 1910.

Application filedFebruary 6, 1909. Serial No. 476,350.

To all whom it may concern:

Be it known that I, Gnonon E. HULsn, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements, in Heating Systems, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to heating systems, and more particularly to systems of this department is to be maintained substantially constant.

One of the objects is to provide a practical device to be used in a system of this character which will be quick to respond to variations in the temperature and positive in its action.

Another object is to provide a device of this character which will be otsimple, durable and econoniical construction.

Other objects will be in part obvious and in part pointed out hereinafter. L

The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter set fOl'iTl], and the scope of the application of which will be indicated in the following claims. i

In the accompanying drawings, wherein is shown one of various possible embodiments of the invention, Figure 1 is a perspective view illustrating the relative positions of the various parts of the system; and Fig. 2 is a tomatic regulator and the main valve.

Referring to the drawings,in which similar reference numerals indicate similar parts throughout the several views, the system is use it is peculiarly adapted. A train pipe 1 which is in connection with a source of supply of a heated medium. preferably steam from the l()COHlt')lllV. is connected by branch piping to the radiators 3 located in the various cars, the said radiators being connected to a suitable trap 4 through which the Interposed in the branch piping 2 is a valve 5 located within a casing 5 and provided with a I stem T which passes through a suitable stuff- 1 ing box 8 secured to the casing 6 and has its outer end operatively connected with a thermostatic cell or diaphragm 9 located Within a suitable casing 10, which may be supported upon the valve casin in a y eonvenlent manner and is provi ed-iwit perforations 11. A conduit 12 communicates with the branch piping 2 upon the supply side of the valve 5 and leads to the inlet of an auxiliary valve chamber 13 formed in a casing 14 which may be secured in any suitable manner to the frame 15 of an automatic regulator. The outlet of said auxiliary valve chamber is in communication with the casing 10 through a suitable conduit 16.

The passage of the heated medium through the conduits 12 and 16 is controlled by an auxiliary valve 17 having a stem 18 secured thereto, preferably guided intermediate its length by a suitable bushing 19 supported by the frame 15 and having a suitable head 20 secured to its outer end, which head is in operative relation to a flexible diaphragm 21. A cup-shaped member .22 is secured to the frame 15 in any suitablemanner, retain wall above the windows, as shown in Fig. 1.

A suitable spring 27 tends normallyto hold the auxiliary valve 17 inits closed. position.

The regulator is preferably located near the upper portion of the car, as indicated in Fig.

1, being secured'to the side wall in any suitable manner. The piping 26 will, of course, be completely filled by thevapor of the volatile liquid 24 which is contained within the chamber 23. r D

The operation of the device, which should be largely obvious from the above description, is as follows: Supposing the temperature rises above a certain predetermined point, the pressure of the vapor in the piping 26 and chamber 23 will increase until it is sutlicient to overcome the tension of the spring 27 at which instant-the diapln'agm 21 will be forced downward, thereby causing causing the same to expand and partially or entirely close the valve 5, this action throttling or cutting off the steam from the radiators'3. It is to be noted that the degree to which the main valve 5 is closed is dependent not only upon the temperature of the apartment, but upon thetemperature or pressure of the steam supply.

It, now, the temperature falls below said predetermined point the pressure of the vapor will decrease, thus permitting the spring 27 to close the auxiliary valve, shutting off the flow of steam into the chamber 10 and permitting the thermostatic cell 9 to cool and contract, thereby opening the'valve 5 and permitting-a fresh supply of the heated medium to flow into the radiators. The opening of the valve 5 may be assisted,

-if-desired, by a suitable spring 28 one end of which may bear against the stuftingbox 8, and the other end against the thermostatic device. The perforations 11 within the easing 10perinit the heated medium to pass out of the same after it has performed its work and also allows outside air to enter the easing to cool the tliermostat ic device when the flow of the heated medium into said casing has been cut oft, as above described.

While the system has been shown as applied to a railway car, it will, of course, be understood that it could be installed in any building or compartment where it is desired to maintain a constant temperature and although the thermostatic cell 9 is preterably positioned outside the apartment to be heated,- as shown, nevertheless certain fez tures of the invention comprehend a construction ins-which it is within the same. Certain'features illustrated and described in this application, naniel v, the piping 20 extending substantially throughout the length of the c: and containing vapor of the volatile iquid .24, are shown, described and claimed in my 'copending application for In: rovements in Sysleiiis otlleating, '909, Serial No. M59224, and are accordingly {not claimed herein.

Asmany clmng'esa u1d be made in the above construction and many apparently widely dificrent embodiments of this invent on could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall beinterpreted as illustrative and not in a limiting sense. it. is also to be understood that the language used in the following claims is intended to cover all of the generic and specific features of the inventionherein described, and all statements of the scope of the gua ge, might be said to fall therebetween.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a heating system, in combination, piping adapted to convey a heated medium from a source of supply to the radiating means, a valve interposed in said piping to regulate the flow of the mediumtherethrough, thermostatic means influen'ced'substantially by the temperature of the heated medium as supplied to said valve for operating said valve, a conduit independently positioned with respect to the radiating .meansadapted to convey the heated medium into operative relation with said thermostatic means, a valve interposed in said conduit for regulating the flow. of said heated medium therethrough, and thermostatic means controlled by the-temperature of the space to bev heated for operating said valve.

2. In a heating system, in combination, piping adapted to convey a heated medium from a source of supply means, -a valve interposedin said piping to regulate the through, means tor operating said valve adapted to be controlled by the temperature of said heated medium, means for conveying the heated mediumt'rom said piping intoinvention which, as a matter of lan-' to the radiating I fiow of the medium, there' operative relation to said 'valve operating means,'and means responsive to variations in the temperature of the surrounding at mosphere for regulating the flow of said medium through said conveying means.

In a h ating system, in combination, piping adapted to convey a heated medium .from a source ot' supply to the radiating means, a valve interposed in said piping to regulate the How of the medium therethrough, thermostatic means for operating said valve in accordance with the. temperature of-said heated medium, means communicating with said piping at a point in. ad-

vance of said valve adapted to convevjthe heated medium therefrom into operative relation with said thermostatic means, and' means responsive to the temperature of the surrounding atmosphere adapted to regulate the flow of said heated medium through said conveying means. 1

4. In a heating system, in combinatimi, piping adapted to' convey a heated medium from a source of supply to the radiating means, a valve interposed in said piping to regulate the. flow oil the medium therethrough, thermostatic means influenced substantially by the temperature of the heated medium supplied to said valve for operating said valve, a conduitindependently positioned with respect to theradiating means adapted to convey the heated medium into operative relation with said thermostatic. means, and means responsivev to variations to said means,

' scenes in the temperature of the surrounding atmosphere adapted to regulate the fiow of said heated medium through said conduit.

5. In a heating system, in combination, piping adapted to convey a heated medium from. a source of supply to the radiating means, a valve interposed in said piping to regulate the flow of the medium therethrough, thermostatic means foroperating said valve in accordance with the temperature of said heated medium, an auxiliary valve for controlling the operation of said means,,a diaphragm operatively associated with said auxiliary valve, and fluidcontaining means in operative relation to said diaphragm and containing an e'xpansible and contraetible fluid whereby the operation of said auxiliary valve is controlled in accordance with the temperature of the space to be heated,- y

6. In a heating system, in combination, piping adapted to conveya heated medium from a sourceof supply to the radiating means, a valve interposed in said piping for regulating the flow of the medium therethrough, thermostatic means for operating said valve in accordance with the temperature of said heated medium, an auxiliary valvefor controlling the operation of said means, a. diaphragm operatively associated with said auxiliary valve, and fluid containing meansin operative relation to said diaphragm. and containing a volatile liquid whereby the operation "of said auxiliary valve is controlled in accordance with the temperature of the space to be heated.

7. In a heating system, in combination, piping adapted to convey a heated medium from a source of supply to the radiating means, a valve interpose in said piping for regulating the flow of the heated medium therethrough, thermostatic means influenced substantially by the temperature of the heat ed medium as supplied to said valve for operating said valve, a conduit independently positioned with respect to the radiating means adapted to conduit to regulate the flow of the heated medium therethrough, means normally tending to maintain said auxiliary valve in-its convey a heated medium an auxiliary valve 1n said ing said valve ally operating means adapte closed position, and automatically operating means adapted to open said valve when the temperature of the surrounding air rises above a predetermined point. v

8. In a heating system, in combination piping adapted to convey a heated medium from a source of supply to the radiating means, a valve interposed in said piping for regulating the flow of the heated medium therethrough, thermostatic means for open in accordance with the tern perature of said heated medium, means cominiuricating with said piping at a point in advance of said valve and adapted to convey theheated medium therefrom to said thermostatic means, an auxiliary valve interposed in said means to regulate the flow of the heated medium therethrough, means normally tending to maintain said auxiliary valve in its closed position, and automaticto open said valve when the temperature of thc.air rises above a predetermined point.

9. In a heating system, in combination, piping adapted to convey a heated medium from a source of supply to the radiating means, a valve interposed in said piping for regulating the flow of the heated medium therethrough, thermostatic means for operating said valve in accordance with the temperature of said heated medium, a conduit adapted to convey a heated medium to said operating means, an auxiliary valve interposed in said conduit to regulate the flow of the heated medium therethrough, means normally tending to maintain said auxiliary valve in its closed position,

eratively associated with said auxiliary valve, fluid-containing means associated =with said diaphragm, and a volatile fluid within said containing means whereby said first valve is controlled by the combined effects. of the temperature of the heated medium and of the surrounding atmosphere.

In testimony whereof I affix my signature, in the presence of two witnesses.

unease runner amiss; Witnesses: v

C. W. Warren, Joni-i Cl. Clean.

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